Product Description
Up for sale is a genuine Tracor 527E Frequency Difference Meter. This precision laboratory instrument is designed to measure the fractional frequency difference between two highly stable oscillators with exceptional accuracy. It is commonly used to compare frequency standards, align oscillators to the same frequency, introduce controlled frequency offsets, and evaluate both short-term and long-term frequency stability.
The Tracor 527E accepts multiple standard reference frequencies without requiring input switching and features both a center-scale frequency difference meter and a dedicated phase meter for precise oscillator comparison.
-
The unit powers on, and the analog meter movements respond during startup. Due to the specialized frequency reference equipment required to operate and verify this instrument, no further functional testing was performed.
-
Cosmetically, the unit shows signs of previous use and storage, including scratches, scuffs, surface rust, and old adhesive/tape residue on the top cover.
Features & Specifications
- Brand: Tracor
- Model: 527E
- NSN: 6625-01-085-7707
- Part Type: Frequency Difference Meter
- Frequency Inputs: 100 kHz, 1 MHz, 2.5 MHz, 5 MHz, 10 MHz
- Input Voltage: 0.5–10 VAC RMS
- Input Impedance: 1 kΩ nominal
- Measurement Range: ±10 parts in 10⁷, 10⁸, 10⁹, 10¹⁰, or 10¹¹
- Accuracy: Better than 1 part in 10¹¹
- Phase Meter: Yes
- Power: 115/230 VAC, 48–420 Hz
- OEM: Yes
Approximate Dimensions
- Width: 16.8 in (42.6 cm)
- Depth: 12.8 in (32.4 cm)
- Height: 3.5 in (8.9 cm)
Compatible Applications
- Calibration Laboratories
- Time & Frequency Standards Laboratories
- Military Communications Calibration
- Aerospace Test Facilities
- Precision Oscillator Comparison
- Rubidium Frequency Standards
- Cesium Frequency Standards
- Crystal Oscillator Testing
- Frequency Standard Maintenance & Verification
5-3-4
